Small Standard (Max 15x12x0.75 in)
Large Standard (Max 18x14x8 in)
Oversize
Amazon Referral Fee
$0.00
FBA Fulfillment Fee (Est.)
$0.00
Total Amazon Fees
$0.00
Net Profit per Unit
$0.00
Net Margin (%)
0.00%
Return on Investment (ROI)
0.00%
How the Amazon FBA Fee Calculator Works
Selling on Amazon via the Fulfillment by Amazon (FBA) program involves various costs that can quickly eat into your margins. Our calculator helps you break down these costs to determine if a product is viable for your e-commerce business.
Key Amazon FBA Fees Explained
Referral Fees: This is essentially a commission paid to Amazon for every item sold. Most categories carry a 15% fee, though it can range from 8% to 45% depending on the niche.
Fulfillment Fees: These cover the cost of picking, packing, and shipping your product to the customer. This is determined primarily by the weight and dimensions of your product.
COGS (Cost of Goods Sold): This is your manufacturing or wholesale cost. To get an accurate ROI, you must include the per-unit cost of the inventory.
Shipping to Amazon: Don't forget the cost of freight or parcel delivery to get your goods from your supplier (or your warehouse) into the Amazon fulfillment center network.
Practical Example
Imagine you sell a Yoga Mat for $40.00. Your manufacturing cost is $10.00, and shipping it to Amazon costs $2.00. If the Referral fee is 15% ($6.00) and the FBA fulfillment fee is $7.50, your total expenses are $25.50. Your net profit would be $14.50, resulting in a 36.25% margin and a 145% ROI on your inventory spend.
Strategies to Increase Profit Margins
To maximize your Amazon business, consider reducing your product's packaging size. Dropping from "Large Standard" to "Small Standard" can save you several dollars per unit in fulfillment fees. Additionally, sourcing higher volumes can lower your COGS, significantly boosting your overall ROI.
function calculateFBAProfit() {
var price = parseFloat(document.getElementById('fba_price').value) || 0;
var cost = parseFloat(document.getElementById('fba_cost').value) || 0;
var shipToAmazon = parseFloat(document.getElementById('fba_shipping').value) || 0;
var referralRate = parseFloat(document.getElementById('fba_referral').value) || 0;
var weight = parseFloat(document.getElementById('fba_weight').value) || 0;
var sizeTier = document.getElementById('fba_size').value;
if (price <= 0) {
alert("Please enter a valid selling price.");
return;
}
// 1. Calculate Referral Fee
var referralFee = price * (referralRate / 100);
// 2. Calculate Estimated Fulfillment Fee (Simplified Amazon 2024 Tiers)
var fulfillmentFee = 0;
if (sizeTier === "small") {
fulfillmentFee = 3.22;
} else if (sizeTier === "large") {
if (weight <= 0.5) fulfillmentFee = 3.86;
else if (weight <= 1) fulfillmentFee = 4.08;
else if (weight <= 1.5) fulfillmentFee = 4.75;
else if (weight <= 2) fulfillmentFee = 5.40;
else if (weight 0) ? (netProfit / (cost + shipToAmazon)) * 100 : 0;
// Display results
document.getElementById('fba_results_area').style.display = 'block';
document.getElementById('res_referral').innerHTML = '$' + referralFee.toFixed(2);
document.getElementById('res_fulfillment').innerHTML = '$' + fulfillmentFee.toFixed(2);
document.getElementById('res_total_fees').innerHTML = '$' + totalFees.toFixed(2);
var profitEl = document.getElementById('res_net_profit');
profitEl.innerHTML = '$' + netProfit.toFixed(2);
profitEl.className = 'fba-result-value ' + (netProfit >= 0 ? 'fba-profit-positive' : 'fba-profit-negative');
document.getElementById('res_margin').innerHTML = margin.toFixed(2) + '%';
document.getElementById('res_roi').innerHTML = roi.toFixed(2) + '%';
// Scroll to results
document.getElementById('fba_results_area').scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}